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jadekelllly
 one year ago
Best ResponseYou've already chosen the best response.0i have no clue, im doing the work sheet and that is all it says for this question

jadekelllly
 one year ago
Best ResponseYou've already chosen the best response.0it says solve for x

dan815
 one year ago
Best ResponseYou've already chosen the best response.0remember complimentary angles

jadekelllly
 one year ago
Best ResponseYou've already chosen the best response.0the answer choices are 20, 11, 10.75, or 11.75

dan815
 one year ago
Best ResponseYou've already chosen the best response.0forget your answers, understand concept

RadEn
 one year ago
Best ResponseYou've already chosen the best response.0if just in the 1st quadrant. u can use the identity : cosx = sin(90x) cos(2x4)=sin(6x) sin(90(2x4))=sin(6x) 90(2x4) = 6x solve for x the result would be same like @dan817 said :)

RadEn
 one year ago
Best ResponseYou've already chosen the best response.0oppss 815 not 817, hihi :)

dan815
 one year ago
Best ResponseYou've already chosen the best response.0do u see how complimentary angles work now

dan815
 one year ago
Best ResponseYou've already chosen the best response.0in a right angled triangle the 2 other angles must add up to 90

jadekelllly
 one year ago
Best ResponseYou've already chosen the best response.0Im really slow at picking up these concepts.....:/ so this im reallly lost..

dan815
 one year ago
Best ResponseYou've already chosen the best response.0hmm how else can i explain it

jadekelllly
 one year ago
Best ResponseYou've already chosen the best response.0btw i really appriciate the help you guysss!!

dan815
 one year ago
Best ResponseYou've already chosen the best response.0no lets do it between 4 to pi+4 for 1 interval of your cos(2x4)

RadEn
 one year ago
Best ResponseYou've already chosen the best response.0hmmm.. for easier, solve this algebrically :) can u solve for x, this part : dw:1371574314002:dw

dan815
 one year ago
Best ResponseYou've already chosen the best response.0first solve an x that works and ill show u how u can find all the other xs that work

Vitas
 one year ago
Best ResponseYou've already chosen the best response.0cos(2x4)=cos(906x) a)2x4=906x+360k b)2x4=6x90+360k a)x=94/8+45k b)x=86/4+90k
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